f « Purre 23.-(V 400, fLGe) Transepidermat damage with d sargunesation of the malptqhian layer, Straticie yranicssine absent, Malpeghtan and hasal layer only two to three eells thick with erfaliation of pigment aulward tocard parakeratinized cone adjacent to stratum cornet, Some pigment laden chromatophores ane | histlocutes fn pars paptllaris of cortunt. Latter rs edematous and infiltrated by ntoderate numbers af lymphocytes, and mononuclear phagocytes. Capillary loops tndistinct. Case 26. 22 days post-erposure, eer Prate ° 24—-(Y100, . H&E) Cail Transepidermal damage wh déserganization of the malpighian layer. Slight parakeratosis, Migration ar erfolration outward of pigment. Loose laminationof stratum corneum. Prymentladen chromatophores and histrociytes in superficial pars papdlaris of corium, Marked cellular infiltra- toon and cdema of pars papillaris, af superfirval pars reticularis, Slight telanqrectasis Case 63, Plates 25 and 26 (53 days post-exposure). Powre 23.—-CV100, IIE) (Case $75) Loose laminatron of stratiam corre with outward papillary projec flons tnd resultand Crvgose’’ appearance. Stratum granniosum af good wedth, Basal and malpiyhian fauers distined wih pigment present. Slight edema of cornon with mild telanqiectasis and slight inerease in perivascular fymephocytes and pericytes. Small somewhal a‘rophic hair follicle adjacent to sebaceous gland— itor pars reticularts, Prate 26.—(VN400, H&E) (Case #77) Same as 23. Occasional perinuclear cytoplasmic halos in mid stratum granulosnm, Loosely laminated stratum core neum, (Piqment laden chromatophores tn superficial cornen along with accastonal (ymphacutes art suana~ nuclear phagocytes.)